From 9e6f35e5cfc429c8e831c32f05ded9ed2359bc3e Mon Sep 17 00:00:00 2001
From: Brian Behlendorf <behlendorf1@llnl.gov>
Date: Mon, 26 Jan 2009 16:59:02 -0800
Subject: [PATCH] Add loopback based test configs

---
 scripts/Makefile.am               |  4 +++
 scripts/zpool-config/lo-raid10.sh | 54 +++++++++++++++++++++++++++++++
 scripts/zpool-config/lo-raidz.sh  | 39 ++++++++++++++++++++++
 scripts/zpool-config/lo-raidz2.sh | 39 ++++++++++++++++++++++
 4 files changed, 136 insertions(+)
 create mode 100644 scripts/zpool-config/lo-raid10.sh
 create mode 100644 scripts/zpool-config/lo-raidz.sh
 create mode 100644 scripts/zpool-config/lo-raidz2.sh

diff --git a/scripts/Makefile.am b/scripts/Makefile.am
index 5a191e99b0..5ded64075a 100644
--- a/scripts/Makefile.am
+++ b/scripts/Makefile.am
@@ -7,4 +7,8 @@ check:
 	./zpios.sh -c file-raid10 -t tiny
 	./zpios.sh -c file-raidz  -t tiny
 	./zpios.sh -c file-raidz2 -t tiny
+	./zpios.sh -c lo-raid0    -t tiny
+	./zpios.sh -c lo-raid10   -t tiny
+	./zpios.sh -c lo-raidz    -t tiny
+	./zpios.sh -c lo-raidz2   -t tiny
 	./zfs.sh -vu
diff --git a/scripts/zpool-config/lo-raid10.sh b/scripts/zpool-config/lo-raid10.sh
new file mode 100644
index 0000000000..78004cc545
--- /dev/null
+++ b/scripts/zpool-config/lo-raid10.sh
@@ -0,0 +1,54 @@
+#!/bin/bash
+#
+# 4 Device Loopback Raid-0 Configuration
+#
+
+FILES_M1="/tmp/zpool-vdev0  \
+          /tmp/zpool-vdev1"
+FILES_M2="/tmp/zpool-vdev2  \
+          /tmp/zpool-vdev3"
+FILES="${FILES_M1} ${FILES_M2}"
+DEVICES_M1=""
+DEVICES_M2=""
+
+zpool_create() {
+	for FILE in ${FILES_M1}; do
+		DEVICE=`/sbin/losetup -f`
+		msg "Creating ${FILE} using loopback device ${DEVICE}"
+		rm -f ${FILE} || exit 1
+		dd if=/dev/zero of=${FILE} bs=1024k count=256 &>/dev/null ||
+			die "Error $? creating ${FILE}"
+		losetup ${DEVICE} ${FILE} ||
+			die "Error $? creating ${FILE} -> ${DEVICE} loopback"
+		DEVICES_M1="${DEVICES_M1} ${DEVICE}"
+	done
+
+	for FILE in ${FILES_M2}; do
+		DEVICE=`/sbin/losetup -f`
+		msg "Creating ${FILE} using loopback device ${DEVICE}"
+		rm -f ${FILE} || exit 1
+		dd if=/dev/zero of=${FILE} bs=1024k count=256 &>/dev/null ||
+			die "Error $? creating ${FILE}"
+		losetup ${DEVICE} ${FILE} ||
+			die "Error $? creating ${FILE} -> ${DEVICE} loopback"
+		DEVICES_M2="${DEVICES_M2} ${DEVICE}"
+	done
+
+	msg ${CMDDIR}/zpool/zpool create ${ZPOOL_NAME} \
+		mirror ${DEVICES_M1} mirror ${DEVICES_M2}
+	${CMDDIR}/zpool/zpool create ${ZPOOL_NAME} \
+		mirror ${DEVICES_M1} mirror ${DEVICES_M2}
+}
+
+zpool_destroy() {
+	msg ${CMDDIR}/zpool/zpool destroy ${ZPOOL_NAME}
+	${CMDDIR}/zpool/zpool destroy ${ZPOOL_NAME}
+
+	for FILE in ${FILES}; do
+		DEVICE=`/sbin/losetup -a | grep ${FILE} | head -n1|cut -f1 -d:`
+		msg "Removing ${FILE} using loopback device ${DEVICE}"
+		losetup -d ${DEVICE} ||
+			die "Error $? destroying ${FILE} -> ${DEVICE} loopback"
+		rm -f ${FILE} || exit 1
+	done
+}
diff --git a/scripts/zpool-config/lo-raidz.sh b/scripts/zpool-config/lo-raidz.sh
new file mode 100644
index 0000000000..cac9036464
--- /dev/null
+++ b/scripts/zpool-config/lo-raidz.sh
@@ -0,0 +1,39 @@
+#!/bin/bash
+#
+# 4 Device Loopback Raid-0 Configuration
+#
+
+FILES="/tmp/zpool-vdev0  \
+       /tmp/zpool-vdev1  \
+       /tmp/zpool-vdev2  \
+       /tmp/zpool-vdev3"
+DEVICES=""
+
+zpool_create() {
+	for FILE in ${FILES}; do
+		DEVICE=`/sbin/losetup -f`
+		msg "Creating ${FILE} using loopback device ${DEVICE}"
+		rm -f ${FILE} || exit 1
+		dd if=/dev/zero of=${FILE} bs=1024k count=256 &>/dev/null ||
+			die "Error $? creating ${FILE}"
+		losetup ${DEVICE} ${FILE} ||
+			die "Error $? creating ${FILE} -> ${DEVICE} loopback"
+		DEVICES="${DEVICES} ${DEVICE}"
+	done
+
+	msg ${CMDDIR}/zpool/zpool create ${ZPOOL_NAME} raidz ${DEVICES}
+	${CMDDIR}/zpool/zpool create ${ZPOOL_NAME} raidz ${DEVICES} || exit 1
+}
+
+zpool_destroy() {
+	msg ${CMDDIR}/zpool/zpool destroy ${ZPOOL_NAME}
+	${CMDDIR}/zpool/zpool destroy ${ZPOOL_NAME}
+
+	for FILE in ${FILES}; do
+		DEVICE=`/sbin/losetup -a | grep ${FILE} | head -n1|cut -f1 -d:`
+		msg "Removing ${FILE} using loopback device ${DEVICE}"
+		losetup -d ${DEVICE} ||
+			die "Error $? destroying ${FILE} -> ${DEVICE} loopback"
+		rm -f ${FILE} || exit 1
+	done
+}
diff --git a/scripts/zpool-config/lo-raidz2.sh b/scripts/zpool-config/lo-raidz2.sh
new file mode 100644
index 0000000000..bd9a40ce58
--- /dev/null
+++ b/scripts/zpool-config/lo-raidz2.sh
@@ -0,0 +1,39 @@
+#!/bin/bash
+#
+# 4 Device Loopback Raid-0 Configuration
+#
+
+FILES="/tmp/zpool-vdev0  \
+       /tmp/zpool-vdev1  \
+       /tmp/zpool-vdev2  \
+       /tmp/zpool-vdev3"
+DEVICES=""
+
+zpool_create() {
+	for FILE in ${FILES}; do
+		DEVICE=`/sbin/losetup -f`
+		msg "Creating ${FILE} using loopback device ${DEVICE}"
+		rm -f ${FILE} || exit 1
+		dd if=/dev/zero of=${FILE} bs=1024k count=256 &>/dev/null ||
+			die "Error $? creating ${FILE}"
+		losetup ${DEVICE} ${FILE} ||
+			die "Error $? creating ${FILE} -> ${DEVICE} loopback"
+		DEVICES="${DEVICES} ${DEVICE}"
+	done
+
+	msg ${CMDDIR}/zpool/zpool create ${ZPOOL_NAME} raidz2 ${DEVICES}
+	${CMDDIR}/zpool/zpool create ${ZPOOL_NAME} raidz2 ${DEVICES} || exit 1
+}
+
+zpool_destroy() {
+	msg ${CMDDIR}/zpool/zpool destroy ${ZPOOL_NAME}
+	${CMDDIR}/zpool/zpool destroy ${ZPOOL_NAME}
+
+	for FILE in ${FILES}; do
+		DEVICE=`/sbin/losetup -a | grep ${FILE} | head -n1|cut -f1 -d:`
+		msg "Removing ${FILE} using loopback device ${DEVICE}"
+		losetup -d ${DEVICE} ||
+			die "Error $? destroying ${FILE} -> ${DEVICE} loopback"
+		rm -f ${FILE} || exit 1
+	done
+}